Fake call claiming to be about tax fraud. Ignore it. And let the scammers bring it on. Here's the text of the call (auto-transcript by google voice).

William and I'm calling you from the legal department of us treasury and your federal case. Id number is C 879-6216 the purpose of this call is regarding an enforcement action which has been executed by the us treasury department regarding tax fraud against your name ignoring this will be an intentional attempt to avoid initial appearance before the magistrate judge or exempt tray for a federal criminal offense, so before this matter goes to the federal claim courthouse or before you get arrested kindly. Call us back on our number as soon as possible the number to reach us is 305 330 1658 let me repeat the number 305-330-1658 hope to hear from you soon before the charges are pressed against you. Thank you.